If you have a nervous problem this could cause gas & IBS too. The nerves do weird things to the body. I'm sure you're watching the kinds of foods you eat & drink? Fizzy drinks (sodas) cause more gas. Do you try an occasional alka seltzer? It has baking soda in it. That could help, or just 1/2 tsp of baking soda in water. Cabbage, beans, brocolli and some other foods can cause gas. Research on -line about it. Also, milk can be the culprit. Leave it off & see what happens. Also, high fat diets causes more acid. One of my books says to leave off Coffee, & other caffiene drinks, & less/no alchohol. Also take enteric-coated aspirin in you take them, or Tylenol. It also suggest that acid fruit juices could cause problems. (organge & grapfruit). Alot of stuff to try I know. Best of luck with all this. Research, research!
Earplugs might be another way to go..........